CN101317781A - Surgical instrument with different advance and retraction rates - Google Patents
Surgical instrument with different advance and retraction rates Download PDFInfo
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- CN101317781A CN101317781A CNA2008100986424A CN200810098642A CN101317781A CN 101317781 A CN101317781 A CN 101317781A CN A2008100986424 A CNA2008100986424 A CN A2008100986424A CN 200810098642 A CN200810098642 A CN 200810098642A CN 101317781 A CN101317781 A CN 101317781A
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- trigger
- drive member
- ratchet
- firing trigger
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
- A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
- A61B17/07207—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously the staples being applied sequentially
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
- A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00367—Details of actuation of instruments, e.g. relations between pushing buttons, or the like, and activation of the tool, working tip, or the like
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
- A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
- A61B2017/07214—Stapler heads
- A61B2017/07285—Stapler heads characterised by its cutter
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/28—Surgical forceps
- A61B17/29—Forceps for use in minimally invasive surgery
- A61B17/2909—Handles
- A61B2017/2912—Handles transmission of forces to actuating rod or piston
- A61B2017/2923—Toothed members, e.g. rack and pinion
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/08—Accessories or related features not otherwise provided for
- A61B2090/0807—Indication means
- A61B2090/0811—Indication means for the position of a particular part of an instrument with respect to the rest of the instrument, e.g. position of the anvil of a stapling instrument
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- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
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- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The invention relates to a surgical instrument with multi-velocity direction switching mechanism including a drive mechanism configured to advance a staple driver and/or cutting member at a first rate and retract the staple driver and/or cutting member at a different rate. In at least one embodiment, the rate at which the driver and cutting member is advanced and/or retracted is the distance that the driver and/or cutting member is translated per actuation of a trigger, for example. In various embodiments, the cutting member can be retracted at a faster rate as compared to the rate in which it is advanced. In such embodiments, the surgical instrument can, owing to the slower advancing rate, provide a greater torque or advancing force to the cutting member while, owing to the faster retracting rate, reduce the time required for the surgeon to retract the cutting member.
Description
The cross reference of related application
The application relates to the following total U.S. Patent application of submitting to simultaneously, and these applications are incorporated into this paper by reference in full:
(1) is entitled as the U.S. Patent application (lawyer's file number 070060/END 6090USNP) of SURGICAL INSTRUMENT HAVING A COMMON TRIGGER FORACTUATING AN END EFFECTOR CLOSING SYSTEM AND ASTAPLE FIRINGSYSTEM; And
(2) be entitled as the U.S. Patent application (lawyer's file number 070059/END6089USNP) of SURGICAL INSTRUMENT HAVING A MULTIPLE RATEDIRECTIONAL SWITCHING MECHANISM.
Technical field
The present invention relates to surgery suturing appliance on the whole, more specifically, the present invention relates to the surgical stapling device that has end effector closure system and be used to launch stitch the trigger system of nail.
Background technology
As known in the art, surgical stapling device is generally used for seam nail is deployed in the soft tissue to reduce or to eliminate soft tissue hemorrhage, for example especially during transecting patient tissue.Surgical stapling device, endoscopic stapler for example generally includes and is configured to soft tissue is fastened on end effector between first and second jaw member.First jaw member generally includes and is configured to seam is followed closely the nail bin that is stored in removedly wherein, and second jaw member generally includes nail anvil.In use, seam nail is usually by crossing the passage in the nail bin and make the seam nail cause that against nail anvil the driver of distortion launches from nail bin, and soft tissue layer is linked together.Usually, as known in the art, the seam nail launches with many seam nail lines or a plurality of seam nail row, so that more reliably organized layer is linked together.End effector also can comprise cutting element, cutter for example, and it is advanced so that cut soft tissue after soft tissue layer has been sewn to together between two row's seam nails.
After driver and cutting element are pushed into, be necessary driver and/or cutting element be withdrawn into their original position usually in end effector.Previous surgical stapling device comprises back-moving spring, this back-moving spring on surgical stapling device release-push or toggle switch activated by the doctor after with respect to the nail bin cutting element of withdrawing.Yet, this stiching instrument cutting element of can not partly withdrawing, therefore, cutting element must withdrawn before advancing once more fully.Other previous surgical stapling device comprises a plurality of triggers, and described trigger operationally joins the system that is used for closed jaw member and is used to advance and/or withdraw driver and cutting element to.Although this device has satisfied the appointment purpose, usually need the doctor to discharge operationally to be bonded on the trigger on the closed-system and the hands of reorientating them operationally is bonded on different trigger in the system that is used to advance seam staple drivers and cutting element with grasping.Be used for closed jaw member and advance driver and the surgical stapling device of the single trigger of cutting element although developed previous having, this device is carried out two kinds of functions when the first actuating of trigger.Although this is suitable in some cases, yet be difficult to operation usually unusually owing to the required power of actuated triggers is big so in the same once actuating of trigger, carry out the device of two kinds of functions.In addition, this device in trigger same once activates closed jaw member and when launching the seam nail can't Xiang the doctor be provided at the seam nail be extended in the soft tissue before the closed jaw member of assessment the position and reorientate the chance of jaw member.Therefore be necessary above-mentioned apparatus is improved.
Summary of the invention
In at least a form of the present invention, surgical instruments can comprise switching mechanism, and this switching mechanism can allow doctor or other clinicist to advance in nail bin selectively or withdrawal seam staple drivers and/or cutting element.In various embodiments, surgical instruments can comprise handle, be operably connected to trigger, percussion driver and end effector on the handle.In at least a embodiment, the percussion driver can comprise second ratchet assembly of first ratchet assembly that can advance cutting element in end effector and the cutting element of can withdrawing.In various embodiments, trigger can comprise first ratchet and second ratchet that is pivotably mounted on it, and described first and second ratchets can join to respectively on first and second ratchet assemblies selectively.In at least a this embodiment, trigger can slide between the primary importance and the second position, and in primary importance, first ratchet engages with first ratchet assembly, and in the second position, second ratchet engages with second ratchet assembly.In this embodiment, the doctor can be apace and is selected between the forward motion of cutting element and withdrawal action expediently.
In at least a form of the present invention, surgical instruments can comprise driving mechanism, and this driving mechanism can advance seam staple drivers and/or cutting element and can stitch staple drivers and/or cutting element with different speed withdrawals with first rate.In at least a embodiment, the travel rate of driver and cutting element and/or withdrawal speed be finger actuator and cutting element for example trigger activate each time or stroke under the distance of translation.Therefore, in this embodiment,, can think that so first rate is greater than second speed under activating each time if trigger advances or the farther distance of withdrawal cutting element.In various embodiments, compare the speed withdrawal that cutting element can be bigger with the speed that cutting element is pushed into.In this embodiment, owing to advance speed less, surgical instruments can provide bigger moment of torsion or propulsive force to cutting element, and because withdrawal speed is bigger, then can shortens the doctor and withdraw the required time of cutting element.In various embodiments, as mentioned above, surgical instruments can comprise switching mechanism, and this switching mechanism can make in first drive system and second drive system one engage with rotatable power transmission shaft selectively.In at least a this embodiment, first drive system can comprise first gear with first segment radius of circle, second drive system can comprise second gear with different pitch radius, and wherein, first gear and second gear can the different rates rotating drive shafts.
In at least a form of the present invention, surgical instruments can comprise trigger, this trigger for example closes at jaw member on the soft tissue in the time of can activating in the first time of trigger, and advances seam staple drivers and/or cutting element when the activating subsequently or for the second time of trigger.In various embodiments, this surgical instruments can allow the doctor that surgical instruments is positioned at operative site and when the first actuating of trigger closed jaw member, and it is interior or cut and organize any seam nail not to be deployed into tissue.Therefore, in this embodiment, the doctor can operate the location surgical instruments and subsequently for the second time actuated triggers to be deployed into tissue interior and/or cut and organize will stitch nail.In at least a this embodiment, activate the closed jaw member of energy the first time of trigger, also can the percussion driver discharge, this percussion driver can advance in the actuation process in the second time of trigger and stitch staple drivers and cutting element.In various embodiments, surgical instruments can comprise switching mechanism, and this switching mechanism can allow the doctor to reopen jaw member, and if they select like this then jaw member be repositioned at more suitable position.
Particularly, the invention discloses following content:
(1). a kind of surgical instruments comprises:
The hands handle;
The percussion driver comprises:
Be operably connected to the firing trigger on the described handle, wherein said percussion driver can produce the rotation firing action when described firing trigger activates for the first time, and produces rotation withdrawal action when another time of described firing trigger activates;
First drive member, wherein said firing trigger can selectively engage with this first drive member; And
Second drive member, wherein said firing trigger can selectively engage with this second drive member;
Be connected to the slender axles assembly on the described handle, this slender axles assembly operationally engages with described first drive member and described second drive member; And
Be connected to the end effector on the described slender axles assembly, described end effector comprises:
Can operationally support the elongated passageway of nail bin therein;
Movably be connected to the nail anvil of described elongated passageway; And
Can operatively be supported on the cutting element in the described elongated passageway, wherein said cutting element operationally engages with described slender axles assembly, and when described firing trigger engages with described first drive member, activate described for the first time and make described cutting element first distance of advancing, when described firing trigger engages with described second drive member, described another time actuating makes described cutting element withdrawal second distance, and described second distance is greater than described first distance.
(2). as (1) described surgical instruments, wherein, described firing trigger can move between the primary importance and the second position, wherein in described primary importance, described firing trigger engages with described first drive member, in the described second position, described firing trigger engages with described second drive member.
(3). as (1) described surgical instruments, comprise closed driver, this closure driver can optionally produce closed action and opening action, and wherein said nail anvil operationally engages with described closed driver and can be in response to described opening action and closed action and move.
(4). as (1) described surgical instruments, wherein, described first drive member comprises a plurality of first gear teeth, and described second drive member comprises a plurality of second gear teeth, described slender axles assembly comprises the rotating power transmission shaft that operationally engages with described cutting element, and described power transmission shaft comprises first gear that operationally engages with described first gear teeth and second gear that operationally engages with described second gear teeth.
(5). as (4) described surgical instruments, wherein, described power transmission shaft limits an axis, described first drive member is positioned on first side of described axis and described power transmission shaft is rotated up in first party around described axis, described second drive member is positioned on second side of described axis and described power transmission shaft is rotated up in second party around described axis, and described second direction is opposite with described first direction.
(6). as (1) described surgical instruments, also comprise one the bistable state mechanism with flexible elements that described percussion driver can be biased in first state and second state, wherein said firing trigger is biased into described first drive member at described first state and engages, and is biased into described second drive member at described second state and engages.
(7). as (6) described surgical instruments, also comprise frame, wherein said bistable state mechanism with flexible elements comprises the spring that operationally engages with described firing trigger and described frame, wherein said spring can make described firing trigger slide, and makes described firing trigger engage with described first drive member or described second drive member.
(8). as (1) described surgical instruments, wherein, when described firing trigger engages with described first drive member, described firing trigger does not engage with described second drive member, and when described firing trigger engaged with described second drive member, described firing trigger did not engage with described first drive member.
(9). as (1) described surgical instruments, wherein, described firing trigger can engage with described first drive member and second drive member simultaneously, thereby prevents that described percussion driver from producing described rotation firing action and described rotation withdrawal action.
(10). a kind of method of handling surgical instruments, described method comprises:
Obtain as (1) described surgical instruments;
Described surgical instruments is carried out disinfection; And
Described surgical instruments is kept in the sterile chamber.
(11). a kind of surgical instruments comprises:
The hands handle;
The percussion driver comprises:
Be operably connected to the firing trigger on the described handle, wherein said percussion driver can produce firing action when described firing trigger activates for the first time, and produces the withdrawal action when another time of described firing trigger activates;
First ratchet assembly comprises:
First ratchet with a plurality of ratchets; And
Can be pivotally connected to first ratchet on the described firing trigger, wherein said first ratchet can selectively engage with the described ratchet of described first ratchet; And
Second ratchet assembly comprises:
Second ratchet with a plurality of ratchets; And
Can be pivotally connected to second ratchet on the described firing trigger, wherein said second ratchet can selectively engage with the described ratchet of described second ratchet;
Be connected to the slender axles assembly on the described handle, this slender axles assembly operationally engages with described first ratchet and described second ratchet; And
Be connected to the end effector on the described slender axles assembly, described end effector comprises:
Can operationally support the elongated passageway of nail bin therein;
Movably be connected to the nail anvil of described elongated passageway; And
Can operatively be supported on the cutting element in the described elongated passageway, wherein said cutting element operationally engages with described slender axles assembly, and when described firing trigger engages with described first ratchet, activate described for the first time and make described cutting element first distance of advancing, when described firing trigger engages with described second ratchet
Described another time actuating makes described cutting element withdrawal second distance, and described second distance is greater than described first distance.
(12). as (11) described surgical instruments, also comprise closed driver, this closure driver can optionally produce closed action and opening action, and wherein said nail anvil operationally engages with described closed driver and can be in response to described opening action and closed action and move.
(13). as (11) described surgical instruments, also comprise:
First spring, it can make and produce ratchet between the described ratchet of described first ratchet and described first ratchet and engage; And
Second spring, it can make and produce ratchet between the described ratchet of described second ratchet and described second ratchet and engage.
(14). as (11) described surgical instruments, wherein, described first ratchet also comprises around localized a plurality of first gear teeth of first diameter, and described second ratchet comprises around localized a plurality of second gear teeth of second diameter, wherein said second diameter is greater than described first diameter, described slender axles assembly comprises the rotating power transmission shaft that operationally engages with described cutting element, and described power transmission shaft comprises first gear that operationally engages with described first gear teeth and second gear that operationally engages with described second gear teeth.
(15). as (14) described surgical instruments, wherein, described power transmission shaft limits an axis, described first ratchet is positioned on first side of described axis and described power transmission shaft is rotated up in first party around described axis, described second ratchet is positioned on second side of described axis and described power transmission shaft is rotated up in second party around described axis, and described second direction is opposite with described first direction.
(16). as (11) described surgical instruments, also comprise one the bistable state mechanism with flexible elements that described percussion driver can be biased in first state and second state, wherein said first ratchet is biased into described first ratchet at described first state and engages, and described second ratchet is biased into described second ratchet at described second state and engages.
(17). as (16) described surgical instruments, also comprise frame, described percussion driver also comprises slidably member, described first ratchet and second ratchet are installed on the described slidably member, wherein said bistable state mechanism with flexible elements comprises the spring that operationally engages with described slidably member and described frame, wherein said spring can be actuated described slidably member, makes described first ratchet and described first ratchet engage or make described second ratchet to engage with described second ratchet.
(18). as (11) described surgical instruments, wherein, when described first ratchet engaged with described first ratchet, described second ratchet did not engage with described second ratchet, and when described second ratchet engaged with described second ratchet, described first ratchet did not engage with described first ratchet.
(19). as (11) described surgical instruments, wherein, with when described second ratchet engages, described first ratchet can engage with described first ratchet at described second ratchet, thereby prevents that described percussion driver from producing described firing action and described withdrawal action.
(20). a kind of method of handling surgical instruments, described method comprises:
Obtain as (11) described surgical instruments;
Described surgical instruments is carried out disinfection; And
Described surgical instruments is kept in the sterile chamber.
(21). a kind of surgical instruments comprises:
The hands handle;
The percussion driver comprises:
Be operably connected to the firing trigger on the described handle;
With the power transmission shaft that described firing trigger operationally engages, the actuating of wherein said firing trigger makes described power transmission shaft rotate around axis;
The slender axles assembly;
Actuating device, it can be arranged on first configuration and second configuration, be used to make described slender axles assembly to rotate up in first party when being arranged on described first configuration around axis, be used to make when being arranged on described second configuration described slender axles assembly around described axis with described first party in the opposite direction on rotation, described actuating device comprises pinion, described power transmission shaft cooperates with described slender axles assembly when described first configuration, and described power transmission shaft and described slender axles assembly cooperate described pinion when described second configuration; And
Be connected to the end effector on the described slender axles assembly, described end effector comprises:
Can operationally support the elongated passageway of nail bin therein;
Movably be connected to the nail anvil of described elongated passageway; And
Can operatively be supported on the cutting element in the described elongated passageway, wherein said cutting element operationally engages with described slender axles assembly, and when described actuating device is in described first configuration, described actuating makes described cutting element first distance of advancing, when described actuating device is in described second configuration, described actuating makes described cutting element withdrawal second distance, and described second distance is greater than described first distance.
(22). a kind of method of handling surgical instruments, described method comprises:
Obtain as (21) described surgical instruments;
Described surgical instruments is carried out disinfection; And
Described surgical instruments is kept in the sterile chamber.
Description of drawings
By following description with reference in conjunction with the accompanying drawings embodiments of the present invention, the above-mentioned and further feature and the advantage of various embodiments of the present invention and realize that their mode will be more obvious, the present invention itself is better understanding also, wherein:
Fig. 1 is the perspective view according to a kind of embodiment of surgical instruments of the present invention;
Fig. 2 is the shaft portion of surgical instruments of Fig. 1 and the exploded view of end effector;
Fig. 3 is the exploded view of handle portion of the surgical instruments of Fig. 1;
Fig. 4 is the partial side view of the handle portion of Fig. 3, and wherein, some parts of surgical instruments are removed;
The vertical view of the handle portion of some parts of surgical instruments that Fig. 5 is removing of Fig. 3, the surgical instruments that illustrates are in the structure that is used for advancing cutting element in end effector;
The upward view of the handle portion of some parts of surgical instruments that Fig. 6 is removing of Fig. 3, the surgical instruments that illustrates are in the structure that is used for advancing cutting element in end effector;
Fig. 7 is the fragmentary, perspective view of the handle portion of Fig. 3, and wherein, some parts of surgical instruments are removed;
Fig. 8 is the perspective view of the surgical instruments of Fig. 1, shows the structure of surgical instruments when activate the first time of trigger, shows the first handle stroke of " compression ";
Fig. 9 is the fragmentary, perspective view of the surgical instruments in being in of Fig. 1 structure shown in Figure 8, and wherein, some parts of surgical instruments are removed;
Figure 10 is the perspective view of cam of end effector closure system of the surgical instruments of Fig. 1;
Figure 11 is the front view of the cam of Figure 10, shows the various relative positions of the locking piece of nail anvil closed-system;
Figure 12 is the perspective view of the surgical instruments of Fig. 1, shows the structure of surgical instruments after trigger is released after it activates for the first time, demonstrates the first handle stroke of " release ";
Figure 13 is the perspective view of the surgical instruments of Fig. 1, shows the structure of surgical instruments when activate the second time of trigger, shows the second handle stroke of " compression ";
Figure 14 is the fragmentary, perspective view of the surgical instruments in being in of Fig. 1 structure shown in Figure 13;
Figure 15 is the perspective view of the surgical instruments of Fig. 1, shows the structure of surgical instruments when the activating for the third time of trigger, shows the 3rd handle stroke of " compression ";
Figure 16 is the perspective view of the surgical instruments of Fig. 1, shows the structure of surgical instruments when the 4th actuating of trigger;
Figure 17 is the perspective view of the surgical instruments of Fig. 1, shows surgical instruments and is released after its 4th time activates and the switching mechanism of the surgical instruments structure after being operated at trigger;
Figure 18 is the perspective view of the surgical instruments of Fig. 1, shows the structure of surgical instruments when the 7th actuating of trigger, and wherein, cutting element is withdrawn fully;
Figure 19 is the partial front elevation view of the surgical instruments in being in of Fig. 1 structure shown in Figure 180, and wherein, some parts of surgical instruments are removed;
Figure 20 is the fragmentary, perspective view of housing of the surgical instruments of Fig. 1, shows the interaction after the 7th time of trigger activates of percussion driver and housing;
Figure 21 is the perspective view according to the gear reduction that is used for surgical instruments of a kind of alternate embodiments of the present invention, and wherein, the part of gear reduction housing is not assembled;
Figure 22 is the exploded view of the gear reduction of Figure 21;
Figure 23 is the perspective view according to the surgical instruments of a kind of alternate embodiments of the present invention;
Figure 24 is the end effector of surgical instruments of Figure 23 and the exploded view of shaft assembly;
Figure 25 is the exploded view of handle portion of the surgical instruments of Figure 23;
Figure 26 is the exploded view of the surgical instruments of Figure 23, and wherein, some parts of surgical instruments are removed;
Figure 27 is the perspective view of the surgical instruments of Figure 23, and wherein, some parts of surgical instruments are removed;
Figure 28 is second perspective view of the surgical instruments of Figure 23, and wherein, some parts of surgical instruments are removed;
Figure 29 is the side view that advances the surgical instruments of cutting element in the end effector that is formed at of Figure 23;
Figure 30 is the side view that is formed at the surgical instruments of withdrawal cutting element in the end effector of Figure 23;
Figure 31 is the perspective view according to the directional switching mechanism of a kind of alternate embodiments of the present invention, and wherein, some parts are not assembled, and other parts illustrate with cutaway view;
Figure 32 is the plane graph of the directional switching mechanism of Figure 31, and wherein, some parts are removed, and other parts illustrate with cutaway view; And
Figure 33 is the diagram according to the bistable state mechanism with flexible elements of a kind of alternate embodiments of the present invention.
The specific embodiment
Same reference numerals is shown identical parts at institute's drawings attached invading the exterior.The example of illustrating in this article shows preferred implementation of the present invention with a kind of form, and these examples constitute the restriction to scope of the present invention never in any form.
Now some illustrative embodiments will be described, with the complete understanding of principle, structure, function, manufacturing and use that apparatus and method disclosed herein are provided.One or more embodiment of these embodiments shown in the drawings.It will be understood by those skilled in the art that in these specific descriptions and apparatus and method illustrated in the accompanying drawings are nonrestrictive illustrative embodiments, and the scope of various embodiments of the present invention only is defined by the claims.The feature that illustrates or describe with regard to a kind of illustrative embodiments can combine with the feature of other embodiment.This modification and change should comprise within the scope of the invention.
In various embodiments, for example can comprise according to surgical instruments of the present invention being used for surgical staple is inserted into system in the soft tissue.In at least a embodiment, surgical instruments can comprise that being configured to store removedly therein the nail bin that stitches nail makes the seam nail at the nail anvil that is out of shape with being used to when nail bin launches.Surgical instruments can comprise the percussion driver that is configured to cross the seam staple drivers of nail bin and is used to advance the seam staple drivers in the nail bin, so that launch the seam nail.In various embodiments, the percussion driver can comprise drive rod, this drive rod by with its trigger that operationally engages translation on the substantial linear direction.In other embodiments, the percussion driver can comprise by the trigger rotating drive shafts.In this embodiment, surgical instruments can comprise shaft assembly, and this shaft assembly can convert rotatablely moving of power transmission shaft to the seam staple drivers in linear movement and the translation nail bin.Although among Fig. 1 to 20 and the illustrative embodiments that illustrates below comprise percussion driver with rotating drive shaft, the present invention is not limited to this.In addition, below the percussion driver with rotating drive shaft has been carried out description on the whole, other this device described in further detail and be illustrated in the serial number of submitting on June 27th, 2006 that is entitled as MANUALLY DRIVEN SURGICAL CUTTING AND FASTENING INSTRUMENT be 11/475412 own together and common unsettled U.S.'s joint patent application in, the full content of this application is incorporated by reference this paper.
With reference to figure 1, surgical instruments 50 can comprise handle portion 52, trigger 54, slender axles assembly 56 and end effector 58.In various embodiments, end effector 58 can comprise nail anvil 62 and nail bin passage 64, and passage 64 can be configured to hold nail bin 66, and nail anvil 62 is pivotably connected on the passage 64.In at least a embodiment, at least one in nail anvil 62 and the passage 64 can be operably connected on the trigger 54, makes that nail anvil 62 can rotate to make position as shown in Figure 8 when trigger 54 activates.In various embodiments, with reference to figure 2-4, trigger 54 can operationally engage with closed drive system, and this closure drive system can be with respect to the external jacket 57 translation nail anvils 62 and the passage 64 of slender axles assembly 56.Main reference Fig. 4, closed driver can comprise cam 68, this cam 68 operationally engages with trigger 54, makes the actuating first time of trigger 54 that cam 68 is rotated and the closed connector 72 of driving on the substantial linear direction around pin 70.More specifically, trigger 54 can comprise the lifting pin 55 (Fig. 3) from its extension, and this lifting pin 55 can contact the surface 71 of cam 68 and cam 68 is risen to position shown in Figure 8.Cam 68 can also comprise cam path 69, when cam 68 when position shown in its Fig. 4 rotates to position shown in its Fig. 8, the sidewall of cam path 69 can engage closed connector pin 76, and makes closed connector 72 along the slip of direction shown in the arrow A (Fig. 4) in the present embodiment.
With reference to figure 2 and 4, surgical instruments 50 can also comprise the ridge assembly (Fig. 1) in the slender axles assembly 56, and this ridge assembly can comprise proximal channel part 78 and distal channel part 80.In various embodiments, channel part 78 and 80 can be cooperated with groove 86 with engaging and be interconnected by projection or pecker 84.More specifically, with reference to figure 2, proximal channel part 78 can comprise the first half ones 77 and the second half ones 79 in various embodiments, and they can be assembled on the distal channel part 80, and projection 84 is fastened in the groove 86.In at least a embodiment, the first half ones 77 of proximal channel part and the second half ones 79 can comprise providing between half and half one 77 and 79 that is formed at the proximal channel part and fasten or projection 81 and/or hole 83 that pressing engages.In other various embodiments, channel part 78 and 80 can interconnect by any suitable mode, and at least a embodiment, although not shown, part 78 and 80 can form.Similar to the above, with reference to figure 2, distal channel part 80 can comprise far-end 88, and this far-end 88 can be connected on the nail bin passage 64.More particularly, distal channel part 80 and nail bin passage 64 can comprise the tongue shape element and the groove elements of for example cooperation, described tongue shape element and groove elements can provide pressing betwixt or fasten interconnection, but also can utilize other any suitable mode that interconnects betwixt.
With reference to figure 4, the near-end 82 of channel part 78 can be connected on the closed connector 72 by pin 53, makes when by cam 68 translations closure connector 72 channel part 78 translation in slender axles assembly 56.In at least a embodiment, channel part 78 can also comprise the projection 87 from its extension, this projection 87 can in the recess in the housing parts 90 85 (Fig. 3), slide and basically limiting channel part 78 along the translation of axis.Because nail bin passage 64 is connected on the proximal channel part 78 via distal channel part 80, when cam 68 as above-mentioned during by trigger 54 rotations, passage 64 and the nail anvil 62 that is pivotably connected on it can move along direction A.In at least a embodiment, with reference to figure 2, when passage 64 and nail anvil 62 during with respect to external jacket 57 translations, the external jacket 57 that the near-end 63 of nail anvil 62 can butt slender axles assembly 56.After the near-end 63 contact external jackets 57 of nail anvil 62, nail anvil 62 can rotate towards passage 64 and nail bin 66, so that closed nail anvil 62, as shown in Figure 8.In various embodiments, with reference to figure 2, passage 64 can be included in groove 65 wherein, and this groove 65 can guide nail anvil 62 when nail anvil 62 pivots with respect to passage 64.In case nail anvil 62 closures, surgical instruments can also comprise locking piece, and this locking piece remains on its make position with nail anvil 62.In various embodiments, with reference to figure 9 to 11, surgical instruments 50 can comprise the spring locking piece 92 that is installed on the housing 90, spring locking piece 92 remains on the appropriate location with cam 68 releasedly, thus closed connector 72, channel part 78 and 80, passage 64 and nail anvil 62 are locked in the appropriate location, till the doctor wishes to open nail anvil 62, as described in detail later such.
In various embodiments, after nail anvil 62 was set at its make position, actuated triggers 54 was with operation percussion driver for the second time, and this percussion driver advances cutting element 96 in end effector 58.In at least a embodiment, the percussion driver can break away from from trigger 54 before trigger 54 activates for the first time.In this embodiment, activate the parts that operationally make trigger 54 and percussion driver engage and/or discharge the percussion driver first time of trigger 54, make that the percussion driver operationally engages with trigger 54.In illustrated embodiment, with reference to figure 3 and 4, the percussion driver can comprise trigger gear parts 100, gear train 102, tooth rest 130 and the rotatable power transmission shaft 106 that extends from trigger 54, they can advance cutting element 96 in end effector 58, as following detailed description more.Shown in Fig. 3 to 7, gear train 102 can comprise ratchet 108, main drive gear 110, drive bevel gear 112 and bevel gear 114, and before activating the first time of trigger 54, cam 68 energy bias voltage ratchets 108 make it to be disengaged with main drive gear 110.More specifically, with reference to figure 3, ratchet 108 can comprise the axle 116 and collar 118, and cam 68 can contact the collar 118 and bias voltage ratchet 108 away from main drive gear 112, makes that the ratchet surface 109 on the ratchet 108 does not engage with ratchet surface 111 on the main drive gear 110.
When activated the first time of trigger 54, as mentioned above, cam 68 can rotate to position shown in Fig. 8, and as the result of this rotation, the groove 120 (Figure 4 and 5) in the cam 68 can discharge ratchet 108.More specifically, with reference to figure 5 to 7, the size of groove 120 can be configured to make 118 pairs of the groove 120 and the collars punctual when the rotation of cam 68, and the collar 118 can slip over cam 68 and allow ratchet spring 122 bias voltage ratchets 108, and it is engaged with main drive gear 110 effects.Afterwards, trigger 54 can be released and be returned to its original position by trigger spring 124 subsequently, and this trigger spring 124 can be connected to from the pin 126 of housing 90 extensions and from the pin 128 of trigger 54 extensions.Especially, even trigger 54 is returned to its original position, cam 68 can remain locked in its second position by locking piece 92, and as mentioned above, retaining groove 120 is aimed at the collar 118 thus.Because this moment, ratchet 108 operationally engaged with travelling gear 110, activate the second time of trigger 54 and can in end effector 58, advance cutting element 96 and seam staple drivers.
Main reference Fig. 3 and 4, the actuating of trigger 54 can make trigger gear parts 100 around the axis rotation that is limited by pin 70.Trigger gear parts 100 can comprise the gear teeth that extends along its periphery, and with reference to figure 5 and 6, gear teeth can engage with the gear teeth that for example centers on the circumferential extension of ratchet 108.Therefore, in use, the axis that the actuating of trigger 54 or rotation can make ratchet 108 wind and be limited by axle 116 and pin 117 rotates (Fig. 3).As mentioned above, with reference to figure 5 and 6, ratchet 108 can comprise ratchet surface 109, and this ratchet surface 109 can engage with the ratchet surface 111 of main drive gear 110.In at least a embodiment, ratchet surface 109 and 111 can activate or rotatablely moving of trigger 54 is delivered to main drive gear 110 during other subsequently actuating in second time of trigger 54, and permission relative sliding motion therebetween when trigger 54 is released and is returned to its position that does not activate.In practice, ratchet surface 109 and 111 can will rotatablely move when a direction is rotated at ratchet 108 and be delivered to main drive gear 110, is not delivered to main drive gear 110 but then will not rotatablely move when ratchet 108 rotates in opposite direction.Although in this description with show ratchet mechanism, yet any other suitable mechanism that is used for transmitting movement between trigger 54 and main drive gear 110 can be used.In addition, although trigger 54 is described and illustrated for bar, yet any other proper device may be used to excite percussion described here and closed driver.
Main reference Fig. 5 to 7, main drive gear 110 can comprise the gear teeth that for example centers on its circumferential extension, and described gear teeth can engage with the gear teeth that the periphery that for example centers on drive bevel gear 112 extends.Therefore, in use, for example be delivered to rotatablely moving of main drive gear 110 and can be delivered to drive bevel gear 112 from ratchet 108.In various embodiments, drive bevel gear 112 can be installed on the axle 113 or with axle 113 and form as one, and wherein, axle 113 can limit axis, and drive bevel gear 112 can be around this axis rotation.In at least a embodiment, with reference to figure 3, surgical instruments 50 can also comprise carriage 115, and drive bevel gear 112 and axle 113 can be around these carriage 115 rotations.As following more detailed description, carriage 115 also can comprise and is configured to the support member 119 of at least a portion of support teeth wheel carrier 130 slidably.In various embodiments, with reference to figure 5 to 7, bevel gear 114 can be connected on the drive bevel gear 112, and perhaps alternatively, bevel gear 114 can be installed on the axle 113 or with axle 113 and form as one.Under above-mentioned any situation, be delivered to rotatablely moving of drive bevel gear 112 and can be delivered to bevel gear 114.
In various embodiments, although not shown, bevel gear 114 can directly engage with power transmission shaft 106 via the bevel gear tooth of cooperation.In at least a such embodiment, bevel gear 114 can for example be rotated in a clockwise direction power transmission shaft 106, and advances cutting element 96 in end effector 58, and is as described below.In this embodiment, the actuating of trigger 54 can advance cutting element 96 in end effector 58, yet cutting element 96 must manually or by additional retraction system be withdrawn.In illustrated embodiment of the present invention, with reference to figure 3 and 5-7, surgical instruments 50 can also comprise switching mechanism, and this switching mechanism can allow power transmission shaft 106 along clockwise direction or rotation counterclockwise, and correspondingly allows cutting element 96 to advance via the actuating of trigger 54 or withdraw.In various embodiments, main reference Fig. 5 and 6, switching mechanism can comprise tooth rest 130, this tooth rest 130 can switch between the primary importance and the second position, wherein, in primary importance, rotatablely moving of bevel gear 114 for example is rotated in a clockwise direction power transmission shaft 106, in the second position, the rotating drive shaft 106 in the counterclockwise direction that rotatablely moves of bevel gear 114.
In various embodiments, with reference to figure 5 to 7, tooth rest 130 can comprise housing 132, forward direction gear 134 and tumbler gear 136, and wherein, forward direction gear 134 and tumbler gear 136 rotatably are installed on the housing 132.In at least a embodiment, power transmission shaft 106 for example can comprise the roughly end 107 of hexagonal shape, this end 107 can be contained in the hole (not shown) in forward direction gear 134 and the tumbler gear 136, makes gear 134 and 136 rotatably join on the power transmission shaft 106.In other various embodiments, end 107 can comprise any other suitable shape or structure, makes gear 134 and 136 rotatably join on the power transmission shaft 106.In above-mentioned any situation, with reference to figure 5, tooth rest 130 can be along the end 107 slides, and makes forward direction gear 134 or tumbler gear 136 to engage with bevel gear 114.In use, for example when forward direction gear 134 engages with bevel gear 114, rotatablely moving of bevel gear 114 can be delivered to forward direction gear 134, and because end 107 has the geometry that cooperates with hole in the forward direction gear 134, rotatablely moving of gear 134 can be delivered to power transmission shaft 106.For along opposite direction rotating drive shaft, can make tooth rest 130 proximads or slide backward, make tumbler gear 136 engage bevel gears 114.Being used for by this way, the mechanism of actuation gear frame 130 will be further described below.
In various embodiments, when forward direction gear 134 engaged with bevel gear 114, as shown in Figure 5, tumbler gear 136 can break away from from bevel gear 114, made tumbler gear 136 freely with power transmission shaft 106 rotations.In at least a embodiment, tooth rest 130 can also comprise distance piece 135, and this distance piece 135 is Support Gear 134 and 136 and their are aimed at rotatably, and allows gear 134 and 136 to rotate independently of one another.In some embodiments, tooth rest 130 can be set at forward location and back on the position intermediate of position, make gear 134 and 136 all engage and power transmission shaft 106 is remained under " locking " state, thereby trigger 54 can't activated with bevel gear 114.In other various embodiments, tooth rest 130 can be set at the centre position, makes gear 134 and 136 all not engage with bevel gear 114.In this embodiment, the percussion driver is in " freedom " state, and rotatablely moving of bevel gear 114 can not be delivered to power transmission shaft 106.
In various embodiments, main reference Fig. 2, power transmission shaft 106 can also comprise can with the screw drive part 138 that operationally engages of percussion nut 140.In at least a embodiment, screw drive part 138 can in response to rotatablely moving of power transmission shaft 106 advance slidably and/or withdraw the percussion nut 140.More specifically, percussion nut 140 can comprise screwed hole 141, this screwed hole 141 can with screw drive part 138 threads engage, make the rotation of power transmission shaft 106 produce the counteracting force that distad advances percussion nut 140.In at least a embodiment, percussion nut 140 can comprise the projection 142 from its extension, and this projection 142 can extend through the groove that limits between half and half one 77 and 79 of proximal channel part, so that restriction percussion nut 140 moving along axis.In practice, groove can prevent to pull the trigger nut 140 with power transmission shaft 106 rotation, and can limit protruding 142 path at percussion nut 140 channel part 78 in during translation.
In various embodiments, with reference to figure 2, cutting element 96 can operationally engage with percussion nut 140, makes the translation (as mentioned above) of percussion nut 140 can cause cutting element 96 translation in end effector 58.In at least a embodiment, surgical instruments 50 can also comprise and is connected the trigger shaft 144 of percussion on the nut 140, is connected drive rod 146 and the adapter 148 that is configured to be connected drive rod 146 and trigger shaft 144 on the cutting element 96.In various embodiments, trigger shaft 144 can comprise near-end 145, and this near-end 145 can comprise the hole that is configured to hold in the pressing mode at least a portion of pulling the trigger nut 140.In at least a embodiment, the near-end 145 of trigger shaft 144 can comprise deformable member 147, and this deformable member 147 can be in its engagement recesses 143 afterwards of being pushed downwards or inwardly deform by the recess 143 in percussion nut 140.Under above-mentioned any situation, trigger shaft 144 can also comprise far-end 149, and this far-end 149 can for example hold stopper 150 in the pressing mode, and stopper 150 can comprise the projection 152 from its extension, and this projection 152 can be contained in the groove 154 in the adapter 148.In various embodiments, adapter 148 can also comprise groove 151, and this groove 151 can hold the connection wing 154 of drive rod 146, makes that drive rod 146 can translation in distally retaining part 80 when adapter 148 passes through trigger shaft 144 translations.In at least a embodiment, drive rod 146 can also comprise far-end 156, and this far-end 156 can engage the recess 97 in the cutting element 96 and advance in end effector 58 and/or withdrawal cutting element 96.As mentioned above, cutting element 96 can comprise cutter 99, and cutter 99 can cut the tissue that is positioned between nail anvil 62 and the nail bin 66 when cutting element 96 is advanced in end effector 58.In addition, as mentioned above, cutting element 96 can comprise part 95, and this part 95 is configured to promote the seam staple drivers (not shown) in the nail bin 66, to launch to be stored in removedly the seams nail (not shown) in the nail bin 66.
In various embodiments, surgical instruments can when promptly activate total second time of trigger 54 in embodiment advance cutting element 96 distance of expectation, in this embodiment in the single actuation of trigger 54, activate closed nail anvil 62 first time of trigger 54, as mentioned above.Yet, in other embodiments, can utilize repeatedly activating of trigger 54 that cutting element 96 is advanced the distance of expecting.In at least a such embodiment, referring to figs 12 to 16, trigger 54 can activated three times so that cutting element 96 is advanced to far-end 61 from the near-end 59 of end effector 58.Yet in other embodiments, the number of times of this actuating depends primarily on the total displacement and the displacement of cutting element 96 after each actuating of cutting element 96.Especially, before activating the second time of trigger 54, cutting element 96 can be positioned in the near-end 59 of end effector 58, and percussion nut 140 can be positioned in its nearest side position.When trigger 54 activates for the second time, with reference to Figure 13 and 14, cutting element 96 about 1/3rd distances between near-end 59 and the far-end 61 of can advancing, similarly, percussion nut 140 can distad be advanced along power transmission shaft 106.Afterwards, with reference to Figure 15, cutting element other 1/3rd distances between near-end 59 and the far-end 61 of can when the activating for the third time of trigger 54, advancing, similarly, with reference to Figure 16, cutting element 96 can advance in the far-end 61 of end effector 58 when trigger 54 activates for the 4th time.
In various embodiments, in order to help the doctor to monitor the number of times that trigger 54 activated, surgical instruments 50 can comprise counting mechanism, and this counting mechanism can show the number of times that trigger 54 has activated and/or be used to launch the residue actuating number of times of all the seam nails in the nail bin.Under above-mentioned any situation, main reference Fig. 3 and 9, a kind of embodiment of counting mechanism 170 can comprise the indication window 171 (Fig. 1) on indication nut 172, indicator board 174 and the housing 90.In at least a embodiment, indicator board 174 can comprise the labelling on it, and this labelling can be depicted as Xiang the doctor and advance cutting element 96 and the number of times of actuated triggers 54.In this embodiment, indication is pulled 174 and can be comprised blank parts 173, and afterwards by window 171 as seen this blank parts 173 activates, promptly makes as mentioned above before the actuating of trigger 54 of nail anvil 62 closures and in the first time of trigger 54.When trigger 54 activated for the second time, the rotation of power transmission shaft 106 can distad advance indication nut 172 and be installed in the indicator board 174 of indicating on the nut 172, made that as seen numeral " 1 " or other the suitable labelling on the indicator board 174 pass through indication window 171.Therefore, this labelling can illustrate cutting element 96 Xiang the doctor and advances by the once actuating of trigger 54.Similar with percussion nut 140, indication nut 172 can comprise screwed hole, this screwed hole can with threaded portion 176 threads engage of power transmission shaft 106, make the rotation of power transmission shaft 106 apply counteracting force and distad advance indication nut 172 to indication nut 172.Trigger 54 actuating subsequently can be below indication window 171 display digit ' 2 ' and ' 3 '.
For the cutting element 96 of withdrawing as mentioned above, can teeth change wheel carrier 130, make forward direction gear 134 break away from from bevel gear 114, with reference to Figure 17 and 18, tumbler gear 136 engages with bevel gear 114.Afterwards, trigger 54 actuating subsequently can make power transmission shaft 106 along opposite direction rotation and proximad translation percussion nut 140.More specifically, because threads engage between the threaded portion 138 of percussion nut 140 and power transmission shaft 106, axle 106 rotation in opposite direction will apply counteracting force to percussion nut 140, and this counteracting force moves percussion nut 140 proximads.Therefore, can be connected to as mentioned above trigger shaft 144, drive rod 146 and the cutting element 96 of percussion on the nut 140 also proximad move the cutting element 96 of end effector 58 in, withdrawing thus.Similarly, axle 106 also can make indication nut 172 proximads of indication component 170 move along opposite direction rotation.More specifically, trigger 54 activates, is that total activate for the 5th time of trigger 54 can cause power transmission shaft 106 to apply counteracting force and nut 172 proximads are moved to indication nut 172 first time after tooth rest 130 is switched.In this case, indication nut 172 can move indicator board 174 with respect to window 171, thereby can see numeral ' 2 ' by indication window 171, and this can remind the doctor that will withdraw fully cutting element 96 needs actuated triggers 54 twice again.
Although trigger 54 activated three times advancing and/or withdrawal cutting element 96 in the present embodiment, yet advance the required actuating number of times of cutting element 96 can be different in other embodiments with the required actuating number of times of withdrawal cutting element 96.Also detailed description is comprised the exemplary embodiment that is used for the feature of different rates propelling and withdrawal cutting element 96 below.In addition, at least a embodiment, the part 95 of cutting element 96 can engage with the seam staple drivers, makes the withdrawal of cutting element 96 also make the withdrawal of seam staple drivers.Yet, in other embodiments, the seam staple drivers can be stayed in the nail bin cutting element 96 of only withdrawing.May therefore exhausted seam staple drivers need be stayed in the exhausted nail bin when using the new nail bin groupware that wherein includes the seam staple drivers that carries to substitute exhausted nail bin groupware, can utilize this embodiment this moment.
For actuation gear frame 130 as described above, surgical instruments 50 can comprise switching mechanism 160, with reference to figure 3 to 5.In at least a embodiment, the switching handle 164 that switching mechanism 160 can comprise a switch 162, extend from axle switch 162 and switch connector 166, wherein, switching connector 166 can be connected on the axle 162 via switching pin 169, and can be connected on the tooth rest housing 132 via pin 168.For tooth rest 130 is slided with respect to power transmission shaft 106, switch handle 164 and can be configured to rotating shaft 162, make the crank arm 163 that extends from axle 162 move to switch connector 166 and along the axis 105 driving gear wheel carriers 130 of power transmission shaft 106.In illustrated embodiment, when switching handle 164 and be orientated basically downwards, as shown in Figure 8, crank arm 163 is orientated basically and makes progress.In this structure, with reference to figure 5, tooth rest 130 is positioned in its rear side or recently on the side position, forward direction gear 134 operationally engages with bevel gear 114.For surgical instruments 50 being switched in the structure that cutting element 96 is contracted, can rotate up and switch handle 164, as shown in figure 17, with rotary crank arm 163 forward or distad.Correspondingly, crank arm 163 can be configured to distad move and switch connector 166 and tooth rest 130 is pulled into its farthest side position, and tumbler gear 136 is engaged with bevel gear 114.If the doctor advances cutting element 96 after being desirably in the cutting element 96 of withdrawing at least in part, the doctor can be rotated down and switch handle 164 and forward direction gear 134 is engaged again with bevel gear 114 so.
In various embodiments, with reference to figure 3 and 5, surgical instruments 50 can also comprise the bistable state mechanism with flexible elements, and it is used for switching mechanism 160 is biased into gear 134 or 136 structures that engage with bevel gear 114.In other words, when the doctor only partly rotated switching handle 164, it is unstable that this bistable state mechanism with flexible elements causes switching mechanism 160 dynamically to be gone up.In this case, the bistable state mechanism with flexible elements can be biased into switching mechanism 160 in two kinds of rock-steady structures any, the structure of promptly advancing or commutating structure.In various embodiments, main reference Fig. 3, bistable state mechanism with flexible elements 180 can comprise receptor 182, spring 184, piston 186 and toggle pin 188.In at least a embodiment, toggle pin 188 can be connected to piston 186 on the switching shaft 162, and receptor 182 can be connected on the projection 183 of housing 90 extensions.In use, spring 184 can be configured to apply biasing force via piston 186 to axle 162, and can axle 162 only its advance and the situation of the partly rotation that commutates between the direction under rotating shaft 162.
In various embodiments, in case cutting element 96 is withdrawn fully, end effector closure system and seam nail trigger system can reset, the nail bin of using up can remove from surgical instruments 50, new nail bin 66 can be positioned in the nail bin passage 64, and surgical instruments 50 can be used for further sewing up and cutting and organizing as mentioned above.In illustrated embodiment, cam 68 can discharge from locking piece 92, to open the nail anvil 62 and the end effector closure system that resets.Similarly, ratchet 108 can break away from from main drive gear 110, so that trigger 54 breaks away from and the seam nail trigger system that resets from gear train 102.In at least a embodiment, cam 68 and ratchet 108 can be by hand-resets, yet, main reference Fig. 3 to 5,9,10,19 and 20, surgical instruments 50 can comprise resetting system, this resetting system can automatically reset as mentioned above end effector closure system and seam nail trigger system.In various embodiments, the final answer of trigger 54 activates these systems that can reset, and is as described in detail later such.
As mentioned above, the first time of trigger 54, actuating can make cam 68 rotate to position shown in Figure 8, and spring locking piece 92 can remain on the appropriate location with cam 68 when the percussion driver is operated by trigger 54 actuating subsequently.Equally as shown in Figure 8, surgical instruments 50 can also comprise cam spring 67, and this cam spring 67 can biased downward cams 68, and with reference to figure 9 and 10, and the cam lock arm 73 that keeps extending from cam 68 is against spring locking piece 92.In this embodiment, cam lock arm 73 can comprise recess 74, and this recess 74 can hold at least a portion of spring locking piece 92.For auxiliary cam spring 67 stops cam 68 upwards to promote in the actuation process subsequently of trigger 54 and stops cam 68 to break away from from spring locking piece 92, indication nut 172 can be configured to contact cam rail 75 and keep cam lock arm 73 against spring locking piece 92.More specifically, along with indication nut 172 is distad advanced, as mentioned above, indication nut 172 can slide along contact track 75, and positive stop is provided thus, and cam can't rotate on 68 against its.Yet in case indication nut 172 is returned to its nearest side position, indication nut 172 can be aimed at inclined-plane 89, therefore, the answer for the third time of trigger 54 activates and can cause cam 68 to rotate up slightly, lock arm 73 is broken away from, as shown in figure 10 from spring locking piece 92.
After locking piece 92 discharged, cam returning spring 67 can make cam 68 be rotated down and make it to be returned to its original position at cam 68.Along with cam 68 is rotated down, the wall energy of cam path 69 enough distad drives closed connector 72, and correspondingly also distad drives channel part 78 and 80 and nail bin passage 64.In at least a embodiment, end effector 58 can also comprise the spring (not shown), and this spring can distad slide at nail bin passage 64, bias voltage nail anvil 62 makes progress during promptly away from the external jacket 57 of slender axles assembly 56.In other various embodiments, although not shown, surgical instruments 50 can also comprise actuator, and wherein, the doctor can operate this actuator and arrive open position with pulling or promotion nail anvil 62.Under above-mentioned any situation, at least a embodiment, cam returning spring 67 can provide enough power to cam 68, so that ratchet 108 shifts out, disengaging engages with main drive gear 110, and the percussion driver that resets thus.In other various embodiments, the undercapacity of cam returning spring 67 pulls down moving cam 68 so that the power that ratchet 108 breaks away from from main drive gear 110 to provide.In at least a this embodiment, surgical instruments 50 can also comprise the toggle switch assembly, with reference to figure 3 to 5 and 19, this toggle switch assembly selectively bias voltage ratchet 108 away from main drive gear 110.
In various embodiments, main reference Fig. 3,4 and 9, toggle switch assembly 190 can comprise being installed in and stir actuator 192 on the power transmission shaft 106, and this stirs actuator 192 can comprise toggle arm 193 from its extension.When the final answer of trigger 54 activated, at least a embodiment, indication nut 172 can contact to be stirred actuator 192 and makes it around power transmission shaft 106 rotations, makes toggle arm 193 towards ratchet 108 rotations.In at least a this embodiment, with reference to figure 9, indication nut 172 can also comprise inclined-plane 179, and this inclined-plane 179 can engage from stirring the projection 191 that actuator 192 extends and making and stir actuator 192 and be rotated in a clockwise direction around power transmission shaft 106.In various embodiments, toggle arm 193 can its during around power transmission shaft 106 rotation contact ratchet 108 and mobile ratchet 108 away from main drive gear 110.In at least a embodiment, ratchet 108 can fully be moved to away from travelling gear 110 places, to allow cam returning spring 67 cam 68 is positioned near the collar 118.Afterwards, cam 68 can remain on this position with ratchet 108, till cam 68 rotates up as mentioned above.
Although said mechanism can reset to their initial position with cam 68 and ratchet 108, yet the toggle arm 193 of stirring actuator 192 at least in illustrated embodiment can be held against the collar 118 location of ratchet 108.Therefore, even cam 68 rotates up and makes groove 120 aim at the collar 118 when trigger 54 activates for the first time, ratchet 108 also cannot be released as mentioned above with joint main drive gear 110.Given this, at least a embodiment, surgical instruments 50 can comprise and is used to rotate toggle arm 193 does not engage it with ratchet 108 resetting-mechanism.In various embodiments, this mechanism can manual operation and/or automatically operates in response to for example actuating of trigger 54.In at least a embodiment, as shown in figure 20, housing 90 can comprise the projection 91 from its extension, and this projection 91 can be configured to make stirs actuator 192 and be returned to its initial position that does not activate around power transmission shaft 106 rotations and with it, as shown in Figure 9.More specifically, in various embodiments, projection 91 can be configured to engage toggle link 194 (Fig. 3) along with tooth rest 130 moves to its proximal position from its distal position, wherein, in distal position, tumbler gear 136 engages with bevel gear 114, and in proximal position, forward direction gear 134 engages with bevel gear 114.Be rotated down when ' advancing ' structure with proximad carrier wheel frame 130 and with surgical instruments 50 disposed thereon stating when switching handle 164, this moving can be realized by switching mechanism 160.Because toggle link 194 91 contact with projection, toggle link 194 can make toggle link 194 contact activated arms 193 and make and stir actuator 192 and rotate along centering on power transmission shaft 106 counterclockwise around pin 195 rotations.In various embodiments, toggle switch assembly 190 can also comprise bistable state mechanism with flexible elements 196, and this bistable state mechanism with flexible elements 196 helps to guarantee that toggle switch assembly 190 does not block in intermediate structure.
As mentioned above, can comprise the single trigger that is used for actuation end effector closure system and seam nail trigger system according to surgical instruments of the present invention.Although described above-mentioned feature with regard to this single trigger surgical instruments, yet some above-mentioned features can be used in the surgical instruments with first trigger and second trigger, this first trigger is used for the actuation end effector closure system, and this second trigger is used for activating seam nail trigger system.With reference to Figure 23 to 30, for example, surgical instruments 200 can comprise the trigger 201 that is used for the actuation end effector closure system and be used to activate the trigger 204 of seam nail trigger system.In various embodiments, with reference to Figure 25, end effector closure system can comprise closed connector 203, and this closure connector 203 operationally engages with closed trigger 201 via pin 209.End effector closure system can also comprise slide block 205 and closure tube 207 (Figure 23), and wherein, closure tube 207 can be operably connected on the closed connector 203 via slide block 205 and pin 211.More specifically, with reference to Figure 29, closure tube 207 can comprise the flange 213 that is positioned at its most proximal end, and this flange 213 can be configured to be contained in the groove 215 in the slide block 205, makes the sliding motion of slide block 205 be delivered to closure tube 207.
In use, main reference Figure 29 and 30, the actuating of trigger 201 can make the distad translation of closed connector 203, correspondingly, makes the also distad translation of slide block 205 and closure tube 207.In various embodiments, closure tube 207 can comprise the element that engages with nail anvil 62 collaboratively, makes the translation of closure tube 207 cause nail anvil 62 towards 64 rotations of nail bin passage.More specifically, with reference to Figure 24, nail anvil 62 can comprise the projection 51 from its extension, and this projection 51 can be contained in the hole 217 of closure tube 207, make the sidewall in hole 217 can butt projection 51 and nail anvil 62 is rotated down.In order to guide nail anvil 62, as mentioned above, nail bin passage 64 can comprise groove 65, and this groove 65 can limit nail anvil 62 path when rotated.Surgical instruments 200 can also comprise locking piece 219, and this locking piece 219 can be configured to trigger 201 is remained on actuated position, thus nail anvil 62 is remained on make position.In order to open nail anvil 62, locking piece 219 (Figure 28) can break away from from trigger 201, makes trigger 201 can be returned to its unactuated position.When trigger 201 was returned to its unactuated position, trigger 201 can drive slide block 205 and closure tube 207 by proximad, and owing to effect between projection 51 and the hole 217 engages nail anvil 62 was rotated up.
As mentioned above, can comprise the percussion driver according to surgical instruments of the present invention, this percussion driver can be configured to for example with first rate propelling cutting element and with different rates withdrawal cutting element.In various embodiments, with reference to Figure 23 to 30, surgical instruments 200 can comprise percussion driver 202, and this percussion driver 202 can comprise trigger 204, power transmission shaft 206, first ratchet assembly 210 and second ratchet assembly 212.In at least a embodiment, ratchet assembly 210 and 212 can be constructed such that power transmission shaft 206 rotates respectively along clockwise direction with counterclockwise, so that advance in end effector 58 or withdrawal cutting element 96.In various embodiments, with reference to Figure 25, trigger 204 can engage with ratchet assembly 210 and 212 selectively, make when trigger 204 activated, in the ratchet assembly 210 and 212 only one driven by trigger 204.In at least a this embodiment, trigger 204 can slide along pin 214, so that in trigger 204 and ratchet assembly 210 and 212 engages.In illustrated embodiment, in pin 214 holes 216 that rotatably are contained in the housing parts 218, and provide rotation axis for trigger 204.
In various embodiments, with reference to Figure 27, trigger 204 can be positioned such that the ratchet 220 that is pivotably mounted on the trigger 204 engages with ratchet 222, and when trigger 204 activated, ratchet 222 rotated around pin 214 by ratchet 220.When trigger 204 discharged, ratchet 220 can slip over the ratchet 224 of ratchet 222, allowed relative motion therebetween.In at least a embodiment, ratchet assembly 210 can also comprise the click spring (not shown), and this click spring is configured to ratchet 220 is biased into ratchet 224 and engages, and ratchet 220 is engaged again with ratchet 224.For the rotation with ratchet 222 is delivered to power transmission shaft 206, this power transmission shaft 206 can comprise connection forward direction gear 226 thereon.More specifically, in at least a embodiment, ratchet 222 can also comprise gear teeth 228, and gear teeth 228 can operationally engage with forward direction gear 226, makes the rotation of ratchet 222 make forward direction gear 226 and power transmission shaft 206 around axis 230 rotations (Figure 25).In various embodiments, forward direction gear 226 can for example press on the power transmission shaft 206, and perhaps in other various embodiments, forward direction gear 226 can form with power transmission shaft 206.
In various embodiments, similar with above-mentioned surgical instruments, with reference to Figure 24, power transmission shaft 206 can operationally engage with percussion nut 140, so that make the translation in nearside retaining part 232 of percussion nut 140.Similarly, as described above, the translation of percussion nut 140 can be delivered to cutting element 96 via drive rod 146, so that advance cutting element 96 in end effector 58.For withdrawal cutting element 96 in end effector 58, at least a embodiment, trigger 204 can slide with second ratchet assembly 212 and engage, and makes that power transmission shaft 206 is along opposite direction rotation when trigger 204 activated.Similar with ratchet assembly 210, with reference to Figure 28, ratchet assembly 212 can comprise ratchet 234 and ratchet 236, and wherein, ratchet 236 can be pivotally mounted on the trigger 204, and can operationally engage with ratchet 234 via ratchet 238.Similar with ratchet 222, ratchet 234 can comprise gear teeth 240, and gear teeth 240 can operationally engage with the tumbler gear 242 on being installed in power transmission shaft 206.When ratchet 222 and 234 engaged with power transmission shaft 206 on opposite side roughly, ratchet 222 and 234 can make power transmission shaft 206 along opposite direction rotation, respectively along clockwise direction and counterclockwise promptly.Therefore, advance in the end effector 58 or withdrawal cutting element 96 in order to be chosen in, trigger 204 can slide with first ratchet assembly 210 or 212 effects of second ratchet assembly and engage.
In various embodiments, although not shown, first ratchet 222 and second ratchet 234 can have roughly the same diameter or pitch radius.In other words, the distance between the gear teeth of the center of ratchet or rotation axis and ratchet can equate.In this embodiment, the distance of cutting element of cutting element of trigger 204 every actuatings 96 progressive distances and trigger 204 every actuatings 96 withdrawals equates basically.Although this embodiment is suitable in some cases, may need doctor's actuated triggers 204 repeatedly before cutting element 96 is withdrawn fully.Given this, in various embodiments, the pitch radius of first ratchet 222 can be different with the pitch radius of second ratchet 234.In at least a embodiment, the pitch radius of second ratchet 234 can be greater than the pitch radius of first ratchet 222, makes distance that cutting element 96 withdraws when trigger 204 activates each time greater than cutting element 96 progressive distance when trigger 204 activates each time.In other words, at least a embodiment, the speed withdrawal cutting element 96 that the speed when second ratchet assembly 212 can advance than cutting element 96 is big.In this embodiment, owing to advance speed less, first ratchet assembly 210 provides bigger moment of torsion or propulsive force to cutting element 96, and because withdrawal speed is bigger, and then second ratchet assembly 212 can shorten the doctor and withdraws the required time of cutting element.
Although the term of using above ' speed ' is used to describe the distance that cutting element 96 can advance or withdraw when trigger 204 activates each time, term ' speed ' is not limited to this.In at least a embodiment, term ' speed ' can be used to describe speed and/or the acceleration that cutting element moves.In this embodiment, may expect to have a kind of like this cutting element, this cutting element advances with Cutting Control member better with lower speed and/or acceleration, and with higher speed and/or acceleration withdrawal to shorten the withdrawal required time of cutting element.In addition, be used to provide difference to advance and the ratchet assembly of the speed of withdrawing although illustrated embodiment comprises, the present invention is not limited to this.On the contrary, it is contemplated that other embodiment, comprise plus gearset, bevel gear and/or other motion transfering device.
In various embodiments, can comprise the gear-box that is used to increase or reduce the velocity of rotation of power transmission shaft according to surgical instruments of the present invention.In at least a embodiment, with reference to Figure 25, surgical instruments 200 can also comprise gear-box 250, and this gear-box 250 can operationally be positioned in the middle of power transmission shaft 206 and the ratchet assembly 210,212.In various embodiments, gear-box 250 can be used for the speed of ' reduction ' power transmission shaft 206, and axle 206 is rotated with the low speed of the speed when not utilizing gear-box 250.In alternate embodiments, gear-box can be used for the speed of ' increase ' power transmission shaft 206, and power transmission shaft 206 is rotated with higher speed.In at least a embodiment, gear-box 250 can comprise at least one group of planetary gear that is used to change the speed of power transmission shaft 206.In other various embodiments, the gear-box the gear-box 252 shown in Figure 21 and 22 can comprise housing 253, be installed in input gear 254, the pinion 258 on the power shaft 256 and be installed in output gear 260 on the output shaft 262.In this embodiment, because input gear 254 has different pitch radius with output gear 260, power shaft 256 will be with different speed rotations with output shaft 262.In the motion of housing 253 internal rotation, gear-box 252 can also comprise various gripper shoes 264, distance piece 266 as shown in figure 22 and sell 268 for the ease of gear 254,258 and 260.Except above-mentioned, gear-box 252 also can be used for for example the clockwise motion of power shaft 256 being converted to the counterclockwise motion of output shaft 262.
In above-mentioned various embodiments, the trigger 204 of surgical instruments 200 can slide between the primary importance and the second position, wherein, in primary importance, trigger 204 operationally engages with first ratchet assembly 210, and in the second position, trigger 204 operationally engages with second ratchet assembly 212.In at least a embodiment, percussion driver 202 for example can be constructed such that first ratchet 220 second ratchet 236 with before second ratchet 234 engages from 222 disengagings of first ratchet.In this embodiment, trigger 204 can be positioned at the centre position, and trigger 204 neither operationally engages also with first ratchet assembly 210 at this place, centre position and operationally do not engage with second ratchet assembly 212.Therefore, in various embodiments, percussion driver 202 can be in ' freedom ' state, and under this state, the actuating of trigger 204 can not cause power transmission shaft 206 rotations.In alternate embodiments, percussion driver 202 can be constructed such that for example second ratchet 236 engaged with second ratchet 234 before first ratchet 222 operationally breaks away from first ratchet 220.In this embodiment, ' locking ' state in the middle of trigger 204 can be positioned at, under this state, trigger 204 can't activate, thus Xiang the doctor indicate trigger 204 not with ratchet assembly in any engage fully, trigger 204 needs further adjustment.
In various embodiments, surgical instruments 200 can comprise with trigger 204 be biased into first ratchet assembly 210 and second ratchet assembly 212 in a device that engages.In at least a embodiment, with reference to Figure 33, surgical instruments 200 can also comprise bistable state mechanism with flexible elements 270, and this bistable state mechanism with flexible elements 270 can go out above-mentioned centre position with trigger 204 bias voltages, and it is biased into first ratchet assembly 210 or second ratchet assembly 212 engages.In various embodiments, bistable state mechanism with flexible elements 270 can comprise spring 272 and connector 274, wherein, spring 272 can apply biasing force to trigger 204 via connector 274, this biasing force is used for trigger 204 is shifted out position (as shown in figure 33) in the middle of it, and it is moved into first ratchet 222 or second ratchet 234 engages.More specifically, when trigger 204 was located therebetween the position, spring 272 can be stretched to length X 1, because spring 272 has resilience force, spring 272 is managed to make and self is foreshortened to its not tensile length, and perhaps for example little than X1 at least length is such as length X 2.In order to make spring 272 himself foreshorten to length X 2, spring 272 can make connector 274 around pin 275 rotations, and wherein, pin 275 can extend from surgical instruments housing 218, and connector 274 is pivotally mounted on the surgical instruments housing 218.More specifically, because first end of spring 272 is installed to from the pin 276 of housing 218 extensions and second end of spring 272 is installed to from the pin 277 of connector 274 extensions, spring 272 can shift near pin 276 and makes and self shorten by selling 277, wherein, will sell 277 shift near pin 276 can be easily by connector 274 be finished around pin 275 rotations.Under the situation of pin 275 rotations, the sidewall of the groove 278 in the connector 274 can be configured to engage the pin 279 that extends from trigger 204 and trigger 204 is slided into first ratchet 222 or second ratchet 234 and engage at connector 274.In practice, the centre position of trigger 204 shown in Figure 33 shows as the dynamic instability position, and the position that engages with ratchet 222 and 234 of trigger 204 shows as the dynamic stability position of percussion drive system.
In various embodiments, as mentioned above, can comprise the device that is used for along first direction and second direction rotating drive shaft according to surgical instruments of the present invention, on first direction, power transmission shaft for example advances cutting element in end effector, on second direction, and power transmission shaft withdrawal cutting element.In at least a embodiment, with reference to Figure 31 and 32, surgical instruments for example can comprise actuating device 280, and this actuating device 280 can allow the doctor to select to utilize power transmission shaft to advance or the withdrawal cutting element.In various embodiments, actuating device 280 can comprise housing 282, inner power shaft 284, outside power shaft 285, take-off (propeller) shaft 286 and switching mechanism 288, wherein, switching mechanism 288 can be configured to selectively make inner power shaft 284 and outside power shaft 285 to engage output shaft 286.Although not shown, surgical instruments can also comprise for example trigger, and this trigger operationally engages with outer drive shafts 285, so that power transmission shaft 285 is rotated in a clockwise direction around axis 287.In at least a embodiment, actuating device 280 can comprise the pinion 292 that is rotatably installed in the housing 282, be fixedly secured to the input gear 293 on the outside power shaft 285 and be installed to output gear 294 on the take-off (propeller) shaft 286, wherein, input gear 293 can operationally engage with the external gear teeth 290 of pinion 292, makes the rotation of outside power shaft 285 be delivered to pinion 292.
In first kind of structure of actuating device 280, output gear 294 can operationally engage with the internal gear teeth 291 of pinion 292, makes the rotation of pinion 292 be delivered to take-off (propeller) shaft 286.More specifically, output gear 294 can operationally engage with take-off (propeller) shaft 286 via band splined end 296, makes output gear 294 drive take-off (propeller) shaft 286 around axis 287 rotations.In this first kind of structure, turning clockwise of outside power shaft 285 for example can convert the counterclockwise motion of take-off (propeller) shaft 286 to.In second kind of structure of actuating device 280, output gear 294 can break away from from pinion 292, makes the rotation of outside power shaft 285 to be delivered to take-off (propeller) shaft 286 via pinion 292.For output gear 294 is broken away from from pinion 292, inner power transmission shaft 284 can slide with respect to outer drive shafts 285, makes to import the recess 298 in the gear 297 contact output gears 294 and promote output gear 294 away from pinion 292.In at least a embodiment, recess 298 can comprise tooth 299, and described tooth 299 can operationally engage with the input gear 297 of inner power shaft 284, makes the rotation of inner power shaft 284 be delivered to take-off (propeller) shaft 286.In this second kind of structure of actuating device 280, turning clockwise of inner power shaft 284 can be directly delivered to take-off (propeller) shaft 286, makes take-off (propeller) shaft 286 also be rotated in a clockwise direction.For output gear 294 is engaged once more with pinion 292, inner input gear 284 can break away from from output gear 294, to allow spring 281 output gear 294 is slided along band splined end 296.
In the above-described embodiment, the doctor can be selectively with respect to the inner power shaft 284 of outside power shaft 285 motions, so that actuating device 280 is arranged in advance structure or the commutating structure.In various embodiments, for mobile power shaft 284, surgical instruments can also comprise actuator or the trigger that is configured to move inner power shaft 284.In at least a embodiment, surgical instruments can comprise second actuator or the trigger that is used to rotate first actuator or the trigger of outside power shaft 285 and is used for moving with respect to outside power shaft 285 inner power shaft 284.In this embodiment, inner power shaft 284 can comprise keyway 283, and this keyway 283 can engage slidably with outside power shaft 285, makes the rotation of outside power shaft 285 be delivered to inner power shaft 284, also allows the sliding motion between them.In at least a embodiment, actuating device 280 can also comprise bearing 300, this bearing 300 rotatably supports input gear 293, and provides biasing force operationally to engage with pinion 292 to keep input gear 293 when compressing between input gear 293 and the housing 282.In various embodiments, output shaft 286 can comprise the member 302 from its extension, and this member 302 can be configured to be contained in the recess 301 of housing 282, so that reduce or even eliminate relative motion between output shaft 286 and the housing 282.In at least a embodiment, although not shown, actuating device 280 can only comprise a pinion 292 and still operation in the above described manner.
In various embodiments, actuating device 280 also can be configured to for example advance cutting element 96 with the speed different with withdrawal speed.In at least a embodiment, with reference to Figure 31 and 32, effect between inner power shaft 284 and the output shaft 286 engages and can be used to advance cutting element 96, owing to directly engage between input gear 297 and the output gear 294, inner power shaft 284 and output shaft 286 can 1: 1 the ratio rotation, that is, inner power shaft 284 every rotations once, output shaft 286 rotation is once.In various embodiments, effect between outside power shaft 285 and the output shaft 286 engages and can be used to the cutting element 96 of withdrawing, because input gear 293 has different pitch radius with output gear 294 and they engage with pinion 292 effects, outside power shaft 285 and output shaft 286 can be different from 1: 1 ratio rotation.In illustrated embodiment, when output shaft 286 and outside power shaft 285 cooperated via pinion 292, the rotary speed of output shaft 286 was greater than the rotary speed of outside power shaft 285.Therefore, in various embodiments, the rate of translation of cutting element 96 when externally power shaft 285 operationally engages with output shaft 286 is greater than the rate of translation when inner power shaft 284 operationally engages with output shaft 286.
Disclosed in this article device can be designed to be abandoned after once using, and perhaps they can be designed to repeatedly use.But under any situation, device can be repaired so that reuse after at least once using.Reparation can comprise the demounting procedure of device, any combination of then cleaning or replace specific features and re-assembly subsequently.Particularly, device can be disassembled, and the device specific features of any number or part optionally are replaced or remove with combination in any.When cleaning and/or replacement specific features, device can re-assembly so that repairing the place or used subsequently immediately before surgical operation by surgery team.The reparation that it will be understood to those of skill in the art that device can utilize the various technology dismantling, clean/replace and re-assembly of being used to.Described technology use and produce be repaired within the scope that device all drops on the application.
Preferably, the invention of describing in this article can be handled before surgical operation.At first, obtain new or used apparatus and in needs, it being cleaned.Apparatus can be sterilized then.In a kind of sterilization technology, apparatus is set in closed and the sealed container, in plastic bag or Arathene bag.Container and apparatus are arranged in the radiation field of penetrable container then, such as gamma-rays, x ray or high energy electron.Antibacterial in radiation destroys apparatus and the container.The apparatus of sterilization can be stored in the sterilization container then.The bottle holder tool of sealing is aseptic to be opened at medical treatment situation up to it.
Though the present invention is described with modular design, the present invention also can further be modified in disclosed spirit and scope.Therefore the application will cover of the present invention any variation, the use of using its general principle or revise.In addition, the application will cover those and disclosed by the invention in have deviation but under the present invention those contents of known or business practice in the field.
Claims (10)
1. surgical instruments comprises:
The hands handle;
The percussion driver comprises:
Be operably connected to the firing trigger on the described handle, wherein said percussion driver can produce the rotation firing action when described firing trigger activates for the first time, and produces rotation withdrawal action when another time of described firing trigger activates;
First drive member, wherein said firing trigger can selectively engage with this first drive member; And
Second drive member, wherein said firing trigger can selectively engage with this second drive member;
Be connected to the slender axles assembly on the described handle, this slender axles assembly operationally engages with described first drive member and described second drive member; And
Be connected to the end effector on the described slender axles assembly, described end effector comprises:
Can operationally support the elongated passageway of nail bin therein;
Movably be connected to the nail anvil of described elongated passageway; And
Can operatively be supported on the cutting element in the described elongated passageway, wherein said cutting element operationally engages with described slender axles assembly, and when described firing trigger engages with described first drive member, activate described for the first time and make described cutting element first distance of advancing, when described firing trigger engages with described second drive member, described another time actuating makes described cutting element withdrawal second distance, and described second distance is greater than described first distance.
2. surgical instruments as claimed in claim 1, it is characterized in that, described firing trigger can move between the primary importance and the second position, wherein in described primary importance, described firing trigger engages with described first drive member, in the described second position, described firing trigger engages with described second drive member.
3. surgical instruments as claimed in claim 1, comprise closed driver, this closure driver can optionally produce closed action and opening action, and wherein said nail anvil operationally engages with described closed driver and can be in response to described opening action and closed action and move.
4. surgical instruments as claimed in claim 1, it is characterized in that, described first drive member comprises a plurality of first gear teeth, and described second drive member comprises a plurality of second gear teeth, described slender axles assembly comprises the rotating power transmission shaft that operationally engages with described cutting element, and described power transmission shaft comprises first gear that operationally engages with described first gear teeth and second gear that operationally engages with described second gear teeth.
5. surgical instruments as claimed in claim 4, it is characterized in that, described power transmission shaft limits an axis, described first drive member is positioned on first side of described axis and described power transmission shaft is rotated up in first party around described axis, described second drive member is positioned on second side of described axis and described power transmission shaft is rotated up in second party around described axis, and described second direction is opposite with described first direction.
6. surgical instruments as claimed in claim 1, also comprise one the bistable state mechanism with flexible elements that described percussion driver can be biased in first state and second state, wherein said firing trigger is biased into described first drive member at described first state and engages, and is biased into described second drive member at described second state and engages.
7. surgical instruments as claimed in claim 6, also comprise frame, wherein said bistable state mechanism with flexible elements comprises the spring that operationally engages with described firing trigger and described frame, wherein said spring can make described firing trigger slide, and makes described firing trigger engage with described first drive member or described second drive member.
8. surgical instruments as claimed in claim 1, it is characterized in that, when described firing trigger engages with described first drive member, described firing trigger does not engage with described second drive member, and when described firing trigger engaged with described second drive member, described firing trigger did not engage with described first drive member.
9. surgical instruments as claimed in claim 1 is characterized in that, described firing trigger can engage with described first drive member and second drive member simultaneously, thereby prevents that described percussion driver from producing described rotation firing action and described rotation withdrawal action.
10. method of handling surgical instruments, described method comprises:
Obtain surgical instruments as claimed in claim 1;
Described surgical instruments is carried out disinfection; And
Described surgical instruments is kept in the sterile chamber.
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US11/810,015 | 2007-06-04 | ||
US11/810,015 US7905380B2 (en) | 2007-06-04 | 2007-06-04 | Surgical instrument having a multiple rate directional switching mechanism |
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CN101317781A true CN101317781A (en) | 2008-12-10 |
CN101317781B CN101317781B (en) | 2012-03-28 |
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CN2008100986424A Active CN101317781B (en) | 2007-06-04 | 2008-06-03 | Surgical instrument having a multiple rate directional switching mechanism |
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EP (3) | EP2732773B8 (en) |
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Also Published As
Publication number | Publication date |
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EP2514371A2 (en) | 2012-10-24 |
PL2732773T3 (en) | 2017-01-31 |
EP2000100A2 (en) | 2008-12-10 |
EP2514371A3 (en) | 2012-12-19 |
EP2732773A1 (en) | 2014-05-21 |
PL2514371T3 (en) | 2016-04-29 |
EP2732773B1 (en) | 2016-07-20 |
EP2732773B8 (en) | 2016-09-14 |
CN101317781B (en) | 2012-03-28 |
EP2000100B1 (en) | 2013-12-11 |
US7905380B2 (en) | 2011-03-15 |
US8196796B2 (en) | 2012-06-12 |
JP2009022741A (en) | 2009-02-05 |
EP2514371B1 (en) | 2015-10-14 |
EP2000100A3 (en) | 2012-08-08 |
JP5172479B2 (en) | 2013-03-27 |
US20080300613A1 (en) | 2008-12-04 |
US20110121051A1 (en) | 2011-05-26 |
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